*3.2.2 'Kyoho'*

'Kyoho' or 'Kioho' is one of the obtained varieties in Japan before the Second World War, resulting of a cross between tetraploid cultivars of *V. vinifera* ('Ishiharawase') and *V. labrusca* ('Centennial'), very common in Japan. 'Kyoho' was first produced by a breeder named Y. Ohinoue in 1945 with the aim of making a cultivar with large berries due to its tetraploid nature. So, 'Kyoho' purple berries are large (12–14 g), easily peeled skin, characterized by edible flesh, sweetness (18–20°Brix) and a strong but pleasant foxy taste1 . They are not or not very prone to bursting, but they detach easily from the bunches when fully ripe and have a short shelf-life. 'Kyoho' is generally a seeded grape but can produce apyrenic berries, which are obtained with several applications of gibberellic acid. The 'Kyoho' yield ranges from 12 to 15 tons per hectare [11].

'Kyoho' cultivation area reached 365,000 hectares in 2015, being the most widely grown grape variety in the world. In China more than 90% of the table grape area is occupied with this variety, in Japan, is the most produced one, and 'Kyoho' grapes are very appreciate in South Korea, China and Thailand. The Asiatic consumers appreciate the big caliber and the soft pulp.
